Governor Tallini has been fairly successful as Ambassador at Large of Antarctica. After he discovered that native born Antarcticans (there are only 11 in the world), once upon a time, could have claimed British Overseas Territories citizenship (BOTC) or British citizenship simply by virtue of a connection to the territory, but that the legal situation is no longer the same since the British nationality law changed in 1983, he placed a real, native born Antarctican, currently holding Chilean citizenship, in contact with an English solicitor he knows, and who is eligible to practice law in the British Antarctic Territory (BAT), and who could thus advise the native born Antarctican on how to seek British citizenship. So even though it may seem improbable or eccentric, Tallini is much more than a nominal Ambassador of Antarctica already, as he already acts like a real Ambassador or Consul of Antarctica, so far only sporadically, so far only for native born Antarcticans (these natives are very few).

Moreover, Governor Tallini is also one of the Governors of the Anti-Antarctic Treaty System (AATS), which is the de facto second party in charge of governing physical and/or virtual Antarctica, as AATS members consider themselves the anti-powers that be (anti-PTB).

In order to more effectively coordinate all UMMOA Antarctic diplomatic, paradiplomatic, and consular activity, the Antarctica Foreign Ministry of the UMMOA was established on 8 June 2014, the world's first dedicated Ministry of Antarctic Affairs.